When two boats share the same hull type — in this case both the Ebbtide 188 SE Bow Rider 2013 and the Ebbtide 188 SE Bow Rider O/B 2011 are deep vee designs with fiberglass construction — the buying decision usually comes down to a handful of practical questions: how many people are you putting on the water, how far do you trailer, and what does your tow vehicle weigh?
On paper these two are close siblings in the size department — Ebbtide 188 SE Bow Rider 2013 at 18,3 ft versus Ebbtide 188 SE Bow Rider O/B 2011 at 18,3 ft. At 215 lbs and 172 lbs respectively, both sit in a similar weight class — either should pair comfortably with most mid-size SUVs and half-ton trucks, though always confirm your specific tow rating with the motor added.
The power gap is worth calling out. Rated to 190 hp, the Ebbtide 188 SE Bow Rider 2013 has a 40-hp advantage over the Ebbtide 188 SE Bow Rider O/B 2011's 150-hp ceiling — enough to notice on acceleration and at cruising speed, particularly with a full passenger load. Fuel capacity breaks the other way: the Ebbtide 188 SE Bow Rider O/B 2011 carries 26 gallons versus 2 gallons in the Ebbtide 188 SE Bow Rider 2013. On a lake day that's negligible, but for coastal cruising or long reservoir runs the extra range matters.
Both boats are rated for 8 passengers — a good fit for a family of four or five plus guests. Comfort at capacity is another matter; the longer hull typically means more seat options and better weight distribution.
Bottom line: Performance buyers should lean toward the Ebbtide 188 SE Bow Rider 2013 and its 190-hp ceiling. If fuel economy and quieter running matter more than top-end speed, the Ebbtide 188 SE Bow Rider O/B 2011 with its 150-hp rating is the more economical daily driver.